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ChirBase for ACD/Labs

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Index

 

Click on items for more information

 

Enantiophore studies

Basic concept of enantiophore

Procedure

Enantiophore frequency analysis

Visualization of the most recurrent enantiophore

 

Molecular modeling

Conformations of diastereomeric complexes

Prediction of elution orders

 

Grid calculations and PLS analysis

Calculation scheme

Illustration of GRID calculation

Plot of predicted versus experimental enantioselectivities (PLS model)

PLS factor contributions for acceptor-lipophile enantiophore pairs

 

ChirBase 3D Database

Building a query in ChirBase from a Three-Interaction Points model

Whelk-O 1 receptor-based queries

Examples of sample fitting 3D-queries in ChirBase

Ligand-based queries

 

Similarity maps

Similarity maps of Crownpak CR, Whelk-O 1 and Chiralcel

Similarity maps comparing molecular diversity between two chiral columns

 

Cluster Analysis / Decision tree

Hierarchical clustering of chiral stationary phases

Cluster analysis (mobile phases)

Decision tree

 

 

Hierarchical clustering of chiral stationary phases

Dealing with 2D substructure search tools

 

Another way to study the data extracted from ChirBase is by hierarchical ascending classification. This method allowed us to build a cluster hierarchy of Chiral coluums displayed as a tree diagram.

 


The dendrogram of the results revealed two main groups of selectors:
- Classical reversed-phase systems (used with aqueous solvents)
- Normal-phase systems

 

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